Doughnut machine and the like



' so 1 1 Aug 927 c. E. CARPENTER DOUGHNUT MACHINE AND THE LIKE s Sheets-Sheet 1.

Filed March 6, 1926 Aug 927 c. E. CARPENTER DOUGHNUT MACHINE AND THE LIKE 5 Sheets-Sheet 2 Filed March 6. 1926 K720922723? Cazri'efiz Caz" 4 a.

1 641,118 c. E. CARPENTER DOUGHNUT MACHINE AND THE LIKE' Filed Mar h s, 1926 5 Sheets-Sheet 3 1220M CZcZrZQSZCi De/Z Z22.

- c. E. CARPENTER DOUGHNUT MACHINE AND THE LIKE Filed Mairqh e. 1926 Aug. 30, 1927.

. V H WV 1 I ,WE'EMEIltitiivLl Aug. 30, 1927.

1,641,118 C. E. CARPENTER DOUGHNUT MACHINE AND THE LIKE Filed March 6, 1926 5 Sheets-Shoot 5 j 7 1 II,

Patented Aug. 30, 1927.

UNITED STATES CHARLES E. CARPENTER, OF CHICAGO, ILLINOIS.

:noucnmrr MAGHIINE AND THE LIKE,

Application filed March 6,- 1926. Serial No. 92,777.

This invention has to do with certain improvements machines for manufacturing doughnuts-and other similar food products which require to be fried or similarly cooked.

One ob ect of the invention is to provide a perfectly automatic machine, which shall function in a continuous and uninterrupted manner as long as the necessary raw materials are supplied to it.

Another object in connection with the above is to provide for the periodical dethe dough mustbe delivered into the grease in the form of a ring.

A further feature of the invention re- .lat es to the provision of means for turning over the frying doughnuts after they have been fried for approximately one half of the required length of time. This will ensure a uniformly fried and browned product.

A further object of the invention is to make provision for periodically advancing the frying doughnuts by the use of a circular travel, the raw material being delivered into lhe grease at one point in the circle of travel and the fried doughnuts being removed at the completion, or substantially the completion, of the travel.

In connection with the foregoing, it isa further object toprovide a vat in which th s:

doughnuts are fried in a single layer, as dis"- tinguished from a bulk frying operatlon.

This will ensure a more perfect and uni formly cooked product.

A further feature of the invention relates to the provision of a new and improved heating element for maintaining the grease bath at the proper temperature at all times. Preferably, this heating element is electrically energized and heated, although manifestly beentripped so as to allow the sprin other forms of heaters may be used, such as a gas burner,-etc.

Other features of the invention will appear from a detailed description of the same, which consists in the features of construction and combinations of parts hereinafter described and claimed.

In the drawings,

Fig. 1 shows a vertical section throu h the apparatus, being a' section taken on t e line 1-1 of Fig. 2, iooking in the direction of thearrows;

Fig. 2 shows an irregular horizontal section taken on the line 22 ofzFig. 1, looking in the direction ,cf the arrows;

Fig. 3 shows a fragmentary horizontal section on the line 33 of Fig. 1,1ooking in. the direction of the arrows, but. on an ,enlarged scale;

Fig. 4' shows a fragmentary vertical section on the line 44 of Fig. 1,:looking in the direction of the arrows, but on an enlarged scale;

Fig. 5 shows a fragmentary side view of a portion of the structure shown in Fig. 4 but with the disk and pin at the bottom 0 their stroke;

Fig. 6 shows a vertical section through the dough vat, on an enlarged scale as compared to.Fig. 1, the operating lever bein at the top position and the bottom dough-dischargin opening being closed by the poppet valve;

Fig. 7 shows a fragmentary view of the plunger and poppet valve and operating mechanisms at the lowermost position of the stroke, where the wad of dough has been forced down through'theo ening;

Fig. 8 shows a view similar to that of Fig. 7 with the exception that the latch has to raise the poppet and cut off the wa of dough, at the same time perforating the same;

Fig. 9 shows a fragmentary view of the doughnut turning 'fingers, which lie in the grease bath and serveto turn over the dough- 1 nuts at the proper time; showin the normal position of said fingers by full mes and the reversed position by dotted lines, bein on an enlarged scale as compared to ige. 1 and 2;

Fig. 10 shows a view similar to that of Fig. 9, but illustrating the fingers which serve to discharge the completed doughnut, the same standing in the normal position;

Fig. 11 shows a view similar to that of Fig. 10, but with the parts thrown into the discharging position;

Fig. 12 shows a face view corresponding to Fig. 10;

Fi 13 shows a fragmentary view of a modi ed construction of dough-discharging mechanism in the normal position corresponding to Fig. 6, the modification consisting in the use of a poppet of larger size than the opening in the dough vat, said poppet being of spring metal so that it can expand out into the full size when lowered, in order to ensure a larger opening in the dou hunt; and

Fig. 14 is a view similar to that of Fig. 7, but illustrating the modified type of con struction just referred to. 7

Referring first to Figs. 1 and 2 in particular, I provide a circular cooking pan 20, within which the grease is carried and within which the doughnuts are fried. This pan 96 is supported by a central, horizontal disk or series of arms 21 having a hub 22 mounted upon a central stud 23. The stud itself is rovided with a base block 24 secured to a. ase plate'25, so that the stud does not rotate. The hub 22 rotates on thestud and is an ported at the proper position of elevation a collar 26 secured to the stud in any suitab e manner, as by a set screw 27.

The hub and pan are preferably rotated with a step-by-step or intermittent movement. This may be done in any convenient manner, as by means of a star wheel 28 secured to the hub 22, together with a comanion pin 29 and disk 30 mountedon the ower end of an operating-shaft 31. This operating shaft 31 is driven by suitable gearing from a driving motor 32 preferably mounted above the position of t \0 pan .26.

The pan 90 has a series of radial partitions or ling rs 38 which define the cells 34 within which the individual doughnuts are retained. These partitions 33, however, are preferably spaced sufiicientlv above the floor of the pan 26 to accommor ate the turnin and dis charging lingers presently to be described.

The pan 20 may be heated in any convenient manner, but preferably by an electric heating element. For the latter purpose, the bottom of said pan is provided with an annular recess 35, within which is seated a heating element designated generally by the numeral 36 and held in place b a bottom ring 37. 6n this ring is place a ring 38 of insulating material, and on the bottom face thereof are the electric slip rings 39 and 40. Stationary brushes 41 and 42 bear a ainst the slip rings 39 and for'the supp y of current, as clearly indicated in Fig. 1.

out through the opening 45.

Above the position of the pan 20 there is placed the dough vat 43. The same is preferably cylindrical in form, being provided with a tapered bottom end 44, so that the dough will be more readily delivered to the discharging mechanism. The extreme lower end of the tapered portion 44 is provided with a discharge orifice 45 of proper size. A suitable, removable cover-plate 46 is seated on the top of the cylindrical vat 43, and said cover is provided with a vertical collar 47, within which there is slidably mounted a collar 48. The lower end of this collar 48 terminates in an outwardly flared portion 49 of size substantially the same as the port 45. A rod 50 is slidably mounted within the collar 48, and at its lower end carries a poppet valve 51 of proper size to close the opening 45.

The upper portion of the sleeve 48 is of enlarged size so as to establish an annular space 52 for the accommodation of a helical spring 53. The lower end of this spring bears against the bottom of the annular opening 52, and the upper end of the spring bears against a flange 54 on the top end of the rod 50. This spring, therefore, tends to draw the lower, flared end 49 of the sleeve 48- and the poppet valve 51 of the rod 50 towards each other, as shown in Fig. 8.

At its upper end the sleeve 48 is provided with an annular groove 55' to receive the fingers 56 of a oke 57 so that by raising and lowering said yoke the sleeve is correspondingly raised or lowered. A latch 58 is pivoted to the yoke 57 at the point 59, said latch having a shoulder 60 which normally engages the top face of the flange 54 to retain the parts locked in the osition of Figs. 6 and 7. The lower end 0 the latch hasa cam surface 61 which will engage an upwardly-facing cam surface 62 of the collar 47 when the yoke 57 is forced down to the extreme limit of its movement.

The sequence of operation of these parts is as follows:

hen the yoke 57 is raised to the upper extreme limit of movement shown in Fig. 6, the poppet valve 51 seats so as to close the port 45, and the final upward movement of the yoke serves to raise the sleeve 48 until the atch 58 drops over into the position of Fig. 6. This upward movement of the parts also serves to draw afresh charge of dough beneath the lower, flared end 49 of the sleeve 48,.such action being emphasized by the suction created by reason of the bellshaped. or flared form 49.

When the yoke 57 is thereafter forced down, the poppet valve moves down with the sleeve 48, and the charge of dough accumulated beneath the flared end 49 is forced continues until the latch finally strikes the upper surface 62 of the collar 47, whereupon This action the latch is tri ped and the spring 53 throws the poppet va ve suddenly upwards into the position of Fi 8. This action serves to cut off the protru ing mass of dough and at the same time perforates the same so as to es-' tablish the hole in the doughnut.

The u and down movements of the yoke 57 ma e eifected in any convenient manner. or this purpose I have illustrated a cross beam -63 pinned to the yoke at the oint 64. One end of said beam is connected y a link 65 with a bracket 66 on the side of the vat 43, and the other end of said 'beam 63 is connected .to the upper end of a vem'ently.

The pitman 67 is operated in any convenient manner; but preferably a pm and slot connection, such as shown in Figs. 3, 4 and 5, is used. For this purpose I have provided a horizontal stub shaft 69 carrying a disk 70, on which is a pin 71 having an anti-friction roller. The lower end of the pitman 67 is enlarged laterally so as to establish a substantially horizontal slot 72 within which said pin 71 travels. The rotations of the shaft 69 and disk will thus cause the pitman to rise and fall. It is preferred. to secure a dwell at the top end of the pitman stroke, for which purpose the slot 72 has its central portion 73 curved upwardly, as best shown in Figs. 4 and 5, on a curvature the same as the circle in which the pin 71 rotates. As a conse uenee whe'n the pin reaches that portion oi its upward travel in which it is working within this curved portion. 73, the pitman does not rise any farther, but remains stationary until the pin 71 reaches the other side of said curved portion 73. Thereupon the pitman starts to move down, and such movement continues to the bottom of the stroke.

In the above connection it will be noted .that the humpon the bottom. side of-the 'driven by a worm 78 on the motor shaft 79 of the motor 32 already referred to, The stub shaft 69 also carries a bevel gear- 80 meshing with the 'bevel gear 81 on the upper end of the shaft 31 already referred to.

tioned that the doughnuts are delivered di-' rect-ly into the pan 20, and the movements of the parts are properly timed so as to en sure delivery of the doughnuts in the consecutive compartments 34 of the pan.

-It is desired to makeprovision for removing the doughnuts after they have been completed, and also toprovide for turning over the doughnuts when they are approximately half cooked, so as to ensure an even cooking on both sides. These mechanisms I will now expain in detail.

At a position just in advance of the position of the dough vat 43 there is a down wardly depending bracket 82 which has a vertical. slot 83, the upper end of which is turned over at a sharp angle, as shown at 84 in Fig. 10. In this connection it will be observed that Figs. 10 and 11 are .views looking in the opposite direction from Fig.

1. Another bracket 85 is provided, to which is pivoted a lever arm 86. The outer end of said lever arm carries a finger 87, the lower end of which has a cross pin 88 Working in the slot 83. It is preferred that the bracket 82 be of channel form, as shown particularly in Figs. 11 and 12, so as to establish two flanges 89 and 90, within each of which is formed one of the slots 83 illustrated in Fig. 10. The cross pin 88 extends through both of these slots. It will be noted that the bracket 85 is slotted as shown at 85 so that the pivot pin 85". on which the arm 86 is pivoted can be adjusted up and down so as to adjust the elevation of the pivotal point for the arm 86. In this way it is possible to bring the vertical movements of the ejector fingers 91 within the proper upper and lower Y A paddle 91 has its inner end journaled on the pin 88, and said paddle is also provided at its back or inner side with an upwardly extending loop 92 which carries at its upper end a cross pin .93. Said cross pin likewise travels in the slots 83. Consequentlythe paddle 91 is so supported that its position with lespect to the horizontal is properly controlled as it travels up and down. When the paddle is at the lower end of its travel it occupies a substantially horizontal position,'asshown in Figs. 1 and 10; butias it reaches the upper limit of its movement the cross pin 93 rides-over into the angling portion 84.of the slot 83, thus tiltmg the paddle at a sharp angle, as shown in A suitable discharge chute 94 is provided at a position adjacent to the discharge posit-ion of the paddle 91, so that after the doughnut has been raised, 'and when the paddle is tilted, the doughnut will be thrown out on to said chute.

- Fig. 9, by

In order to assist in delivering the doughnut, I have provided a pair of light fingers 95 and 96, which are pivoted at their upper ends on a cross pin 97 carried by the bracket 82. These fingers work within suitable slots 98 and 99 of the paddle so as not to interfere with proper movement of the parts. The pin 93 already referred to travels behind the positions of the fingers 95 and 96, so that as said pin reaches its upper limit of movement it throws the fingers forward suddenly, thus lifting the doughnut away from the paddle with an accelerated movement and throwing it on to the chute 94.

Normally the paddle 91 stands at such a lowered position as not to interfere with the lateral movement of the partitions 33 of the pan and at the same time said paddle travels close enough to the floor of the pan to pick up the finished doughnut. These facts will be appreciated from an examination of Fig. 1.

The lever 86 may be operated in any convenient manner, but I prefer to make use of the pitman already referred to. For this purpose the lower end of said pitman, or the horizontal enlargement thereof, carries a pair of downwardly extending rods 100 and 101 which attheir lower ends carry a cross piece 102. This cross piece in turn has a sidewise projecting pin 103 working within a vertical guide slot 104 of a bracket 105. The inner end of the lever 86 is slotted, as shown at 106 in Fig. 1 in particular, so that as the pin 103 descends it will pick up the inner end of said lever, rocking the lever and causing the paddle to be properly operated. At the same time the top half of the lever is cut away sufliciently to allow the pin 103 to ride up beyond the position of the lever, as shown in Fig. 1.

The accelerated movement of the pitman at the bottom of its stroke serves to deliver a kick to the paddle 91 and fingers 95 and 96 at the time necessary to ensure the most satisfactory discharge of the doughnut on to the chute 94.

At a position substantially opposite to that of the paddle 91, there is provided a bracket 107 having a vertical slot 108, the upper end of said slot being turned over at substantially one hundred and eighty degrees, as shown at 109 in Fig. 9. A collar 110 slides up and down on the bracket 107, said collar being provided with a pin 111, which reaches through the slot 108 and carries at its inner end a turn-over paddle 112. This turn-over paddle has a vertical projection 113 which carries another pin 114 working in aslot 108 at a position above the pin 111. Consequently, as the collar 110 is raised, the turn-over paddle will he suddenly swung over into the dotted-line position of reason of the curved portion 109 of the slot.

The turn-over paddle 112 normally stands at a position close to the floor of the pan 20, as shown in Fig. 1, where it will not interfere with the lateral passage of the partitions 33, and at the same time will pick up the doughnuts at the proper time. As each doughnut is picked up, it is thrown over so as to be turned upside down, thus ensuring a uniform cooking on both sides.

The turn-over paddle may be operated in any convenient manner, preferably by a lever 115 pivoted to a bracket 116. The inner end of said lever 115 is slotted as shown at 117 to receive the same pin 103 which operates the lever 86.

It will be noted that when a doughnut is to be turned over, it is lifted out of one cell of the pan, and is preferably delivered back into the same cell. This result may be ensured by so timing the parts that the pan 20 is advanced the distance of one cell while the paddles 91 and 112 are in the raised position, where they do not interfere with the partitions 33 of the pan. At the same time, this result is readily accomplished by the use of the star wheel or Geneva movement already referred to.

The mechanisms may be housed and supported in any convenient manner, and I do not deem it necessary in this specification to explain the details of such arrangements to any great extent. I will state, however, that it is preferred that the frame of the machine be provided with a table 118 above the base plate and separated therefrom so as to accommodate the pan 20 and the various mechanisms which are immediately associated therewith. This table 118 may in turn be supported by suitable corner posts 119, 120, 121 and 122, as shown in Fig. 2.

It is alsopreferred that the dough vat 43 be set into a ring 123 surrounding an opening 124 in the table 118,*the dough vat being provided with a flange 125 to prevent it from falling through the opening. With this arrangement, it is a relatively simple matter to lift the dough vat away from the table for the purposes of cleaning, etc.

The brackets 82, 85, 105, 107, 116, etc., may be readily supported from the bottom of the table 118.

In Figs. 13 and 14, I have shown a modified construction of poppet valve in place of that illustrated in Figs. 6, 7 and 8. In this modified structure the poppet valve comprises a pair of spring disks 126 and 127, each of which is circular in form, but is radially slotted at a number of points so as to allow it to be flexed about a vertical axis. The central portions of these disks are secured to the stem 50. and the parts are so positioned that as said stem is raised the full amount the disks are drawn up into the port 45. flexing the necessary amount for this purpose. As a result, said valve disks may be made of larger size than the size of the rt, so as to ensure the formation of a arger hole in the doughnut than the size-of the port through which the dough is delivered.

batches from the vatinto the pan, means into the pan adapted to receive dependi ng the completed doughnuts, means for periodically raising said receiving means and for actuating said receiving means to discharge the doughnuts received thereon, means lo cated at a position substantiallybpposite to said receiving and discharging means also depending into the pan to receive the cooking doughnuts thereon, means for ra sing and turning said last mentioned receiving means to turn the dou hnuts thereon, and means for causing all 0% said parts to function in sequence, substantially as described.

2. In a machine of the class described, the combination of a circular pan mounted for rotation about a vertical axis, means for heating the pan, means for introducing ringshaped dlough I point in its circular path. of travel, means for I batches into the pan at one turning said ring-shaped dough batches at another point in the circular path of travel substantially opposite'to the point of introduction, and means for raising the completed dough batches from .the pan at another pint in the circular path of travel and imme lately in advance of the point of introduction,- substantially as described.

3. In a machine of the class described, the combination of a cooking vessel, means for causing said vessel to travel in a definite clqsed path lying in a substantially horizontal plane, a series of compartments in said vessel corresponding to individual articles to be cooked therein, means for heating the vessel during its travel, means for intermittently introducing dough batches into the consecutive compartments as they pass a given point, means for turning the cooking articles in the diiterent compartments as they passanother point, and means for removing the cooked articles from the individual compartments as they pass another point, substantiallyas described.

In a machine of the class described the combinationof a circular 'pan, means for rotating the same -.in a horizontal plane, means for heating said pan, means for introducing dough batches into the pan ata given point, and means Y for ejecting the cooked articles from thepan comprisln a stationary downwardly depending brac et reaching to a point within the pan, there bemg a vertical slot in said bracketreaching to a point close to the lower end thereof, the upper end of said slot curving outwardly a vertically movable tray having a pair 0 guide pinsv working in said slot, said guide PIIIS serving to retain the tray in substantially horizontal position during travel of said pins through the vertical portion of the slot, and serving to cause the tray to tilt downwardly when the pins enter the upper end of the slot, to thereby allow the supported article to slide ofi of the tray, there bein a pluralit of slots in the tray, a sweep mem er pivote to astationary part above vthe path of travel of the tray and having fingers depending in said slots, the upper .guide pm of the tray serving to engage said fingersto swing them outwardly when the 'tray reaches the upper end of its travel to thereby assist in ejecting the article from the tray sideways, substantially as described.

,5. In a machine of the class described the combination of a circular pan, means 'for rotatin the same'in a horizontal plane,

meansfor ieating said pan, means for introducing dough batches into the pan at a given point, and means fior ejecting the cooked articles from the pan comprising{ a stationary downwardly depending brac reaching to a point within the pan, a vertically movable tray traveling adjacent to said bracket, means for supporting said tray in a substantially horizontal plane during its vertical movements, meansfor tilting said tray adjacent to the upper limit of its movements to thereby allow thesupported article to slide ofi of the tray, a sweep member pivotally mounted adjacent to the tray, and means for causing the same to sweep outwardly with respect to the tray co-incidental- 1y with the tilting action of the tray substantially as described.

- 6. In a machine of the class described, the combination of a pan, means for heating the same, means for introducing dough batches into the pan at a given point, and means for ejecting the cooked articles from the pan, comprising a downwardly de ending bracket reaching to a oint close to 81s fioor of the pan, a vertical y movable tray work 'ing in conjunction with said bracket, means gether with means for sweeping the articles from the tray comprising a sweep mem ber pivoted: at a point above the tray causing sai tray to tilt downwardly at a tili u about a radially point adjacent to the upper Limit of its travel, and a sweep member pivoted at a position above the tray and including a'plurality of downwardly de ending fingers adapted to sweep across t e tray ooinci-' dentally with the downward tilting of the tray, substantially as described.

8. A machine of the class described comprising in. combination a circular pan for cooking grease, means for supportmg the same to permit rotation within a horizontal lane, means for introducing dough batches mto said an at a given point in its rotary travel, said batches floating on the surface of the hot grease therein, together with means for turning over the cooking articles at a selected point in the rotation of the pan, said turning means comprising a downwardly depending bracket reaching to a point close to the floor of the an, a ver tical slide working on said brac t, a horizontal tray ivoted to said slide, means for retaining sald tray in horizontal position during the vertical movements of the slide, and means for turning said tray through an arc substantially greater than 90 when the slide reaches a point adjacent to the upper limit of its travel on the bracket, substantially as described.

9. In a machine of the class described, the combination of a circular pan for grease or the like having a series of radial partitions reaching partially across the pan but substantially separated from the floor of the pan, means for heating the pan, means for rotating the pan in a horizontal lane, means for introducing dough batches mto the pan at one point in its rotary travel and means for turning said dough batches at another point in its travel comprising a downwardly depending bracket reaching into the pan, at a radial position intermediate between the partitions and the edge of the pan, a carriage vertically movable upon the said bracket, a tray pivotall mounted on said carriage, and adapte to rotate extending axis, means for supporting sai tray in'substantially horizontal position during the vertical movements of the carriage on the bracket, the tray normally standing at a position within the pan lower than the partitions aforesaid, whereby the partitions travel above the tray, and means for swinging the tray on its axis when the carriage is raised substantially to its upper extreme limit of movement, to thereby cause the tray to rotate forwardly with respect to the direction of travel of the pan, substantially as described.

10. In a machine of the class described, the combination of a pan for grease or the like mounted for movement in a given direction of travel, there being a series of partitions extending partially across the width of said pan and spaced above the floor thereof to establish a series of compartments for individual articles being cooked, means for heating the pan, means for introducing dough batches into the compartments aforesaid at one point in the path of travel, and means for turning said dough batches at another point in the path of travel comprising a downwardly dependin bracket reaching into the pan at a position intermediate between the partitions and the edge of the an, a carria e verticallv movable upon said bracket, a ray pivotally mounte on said carriage and ads ted to rotate about an axis extending at right angles to the path of travel of the pan, means for supporting said tray in a substantially horizontal position during the vertical movements of the carriage on the bracket, the tray normally standing at a position within the pan lower than the partitions aforesaid, whereby the partitions travel above the tray, and means for swinging the tray on its axis when the carriage 1s raised substantially to its extreme limit of movement, to thereby cause the tray to rotate forwardly with respect to thexdirection of travel of the pan, substantially asdescribed.

11. In a machine of the class described the combination of a circular, relatively shallow pan for grease, means for supporting said pan to permit the same to rotate about a central vertical axis, a series of radial partitions extendin at least part we across the pan to establis a series of in ividual compartments, therein, together with means for heating the pan comprising an electric heating element in contact with the bottom surface of the pan beneath the compartments aforesaid, together with means for supplying current to the heating element durin the rotation of the pan, substantially as described.

12. In a machine of the class described the combination of a circular relatively shallow pan for grease, or the like, means for supporting said pan in a substantially horizontal position to permit rotation of the pan about a circular vertical axis, there being a circular upwardly reaching channel in the bottom face of the pan for the accommodation of a heating element, an electric heatin element inserted therein and in contact with the bottom surface of the pan, and traveling with the pan, and serving to heat-the pan from beneath, means for enclosing the bottom of said channel to retain the heating element therein, and means for supplying ing an upwardly facing channel in the bot-.

tom of the pan for the accommodation of a heating element, an electric heating element in said channel and directly heating the bottom face of the pan, together with means for supplying electric current to said heating element during travel of the pan,

substantially as described.

14. In a mechanism of the class described the combination of a circular pan, means for supporting the same to permit rotation about 'a central vertical axis, means for heating the pan during rotation, means for advancing the pan with a step by step rotary motion, means for introducing dough batches into. the pan at one point in its path of travel, a turning tray in conjunction with the pan at another point in its path of travel and including means" permitting said turning tray to be reciprocated vertically with' forward rotation at the upper limit of its reciprocation, a discharge trayin conjunction with the pan at another point in its path of travel and including means permitting vertical reciprocation of said tray with means for tilting the tray outwardly at its upper limit of reciprocation, common means for reciprocating both of the trays aforesaid simultaneously, and an operative connection between said common reciprocating means and the pan advancing means substantially as described.

15. In a machine of the class described the combination of a circular pan for grease, means for supporting the same to permit rotation about a central vertical axis, a series of radial partitions in the pan serving to establish a series of individual compartments therein, means for heating the pan during rotation, means for feeding dough batches into the individual compartments, and means for advancing the pan step by step the distance of one compartment at each' advancement, said advancing means comprising a star wheel in conjunction with the pan and having a number 01 operating positions equal to the number of compartments, together with a pin for operating said star Wheel substantially as described.

CHARLES E. CARPENTER. 

